Allegorical figures sit on either side of an empty
circular reserve, which Federico probably intended
to contain the Zuccaro family emblem (as in other
drawings in this series). Fortitude sits at left, symbolizing
courage, strength, and endurance. A lion
signifying bravery crouches at her feet, while an ox
peers over her shoulder. At right, Patience carries
the yoke of servitude or obedience and sits with a
lamb at her feet, while an ass stands behind her.